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<p>C++ 库基础扩展的版本 2 (Version 2 of the C++ Extensions for Library Fundamentals) ， ISO/IEC TS 19568:2017 在定义于<a href="lib_extensions.html" title="cpp/experimental/lib extensions">版本 1</a> 中的组件外，还为 C++ 标准库定义下列组件：
</p><p><br>
</p>
<h3><span class="mw-headline" id="C.2B.2B_.E6.A3.80.E6.B5.8B.E6.89.8B.E6.B3.95"> C++ 检测手法 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/type_traits&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/type traits（页面不存在）">&lt;experimental/type_traits&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="is_detected.html" title="cpp/experimental/is detected"> <span class="t-lines"><span>is_detected </span><span> detected_t </span><span> detected_or</span></span></a></div></div>
</td>
<td>  检测 <i>template-id</i> 是否良式的别名模板 <br> <span class="t-mark">(别名模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="nonesuch.html" title="cpp/experimental/nonesuch"> <span class="t-lines"><span>nonesuch</span></span></a></div></div>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp">detected_t</span></span> 在失败时返回的类类型 <br> <span class="t-mark">(类)</span>
</td></tr>

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<h3><span class="mw-headline" id=".E4.BC.A0.E6.92.AD_const_.E7.9A.84.E4.BB.BF.E6.8C.87.E9.92.88.E5.AF.B9.E8.B1.A1.E5.8C.85.E8.A3.85.E5.99.A8">传播 const 的仿指针对象包装器</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/propagate_const&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/propagate const（页面不存在）">&lt;experimental/propagate_const&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="propagate_const.html" title="cpp/experimental/propagate const"> <span class="t-lines"><span>propagate_const</span></span></a></div></div>
</td>
<td>  传播 const 的仿类指针对象包装器 <br> <span class="t-mark">(类模板)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id=".E9.9D.9E.E5.8D.A0.E6.9C.89.E6.8C.87.E9.92.88"> 非占有指针 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/memory&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/memory（页面不存在）">&lt;experimental/memory&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="observer_ptr.html" title="cpp/experimental/observer ptr"> <span class="t-lines"><span>observer_ptr</span></span></a></div></div>
</td>
<td>  表示非占有指针的类 <br> <span class="t-mark">(类模板)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id="std::array_.E5.88.9B.E5.BB.BA"> <code>std::array</code> 创建 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/array&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/array（页面不存在）">&lt;experimental/array&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="make_array.html" title="cpp/experimental/make array"> <span class="t-lines"><span>make_array</span></span></a></div></div>
</td>
<td>   创建 <span class="t-lc"><a href="../container/array.html" title="cpp/container/array">std::array</a></span> 对象，从参数推导出其大小和可选的元素类型 <br> <span class="t-mark">(函数模板)</span> </td></tr>
</table>
<h3><span class="mw-headline" id="ostream_joiner"> <code>ostream_joiner</code> </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/iterator&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/iterator（页面不存在）">&lt;experimental/iterator&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="ostream_joiner.html" title="cpp/experimental/ostream joiner"> <span class="t-lines"><span>ostream_joiner</span></span></a></div></div>
</td>
<td>  写入相继元素到输出流，并以分隔符分隔相邻元素的输出迭代器 <br> <span class="t-mark">(类模板)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id=".E7.AE.80.E5.8D.95.E7.9A.84.E9.9A.8F.E6.9C.BA.E6.95.B0.E7.94.9F.E6.88.90.E8.AE.BE.E6.96.BD"> 简单的随机数生成设施 </span></h3>
<p><span id=".E9.80.90.E7.BA.BF.E7.A8.8B.E5.BC.95.E6.93.8E"></span>为每个线程维护一个 <span class="t-lc"><a href="../numeric/random.html" title="cpp/numeric/random">std::default_random_engine</a></span> 类型的<i>逐线程引擎</i>，初始化到不可预测状态，而它并为下列函数所用。
</p>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/random&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/random（页面不存在）">&lt;experimental/random&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="randint.html" title="cpp/experimental/randint"> <span class="t-lines"><span>randint</span></span></a></div></div>
</td>
<td>  生成指定范围中的随机整数 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="reseed.html" title="cpp/experimental/reseed"> <span class="t-lines"><span>reseed</span></span></a></div></div>
</td>
<td>  重播种单个线程的随机引擎 <br> <span class="t-mark">(函数)</span> </td></tr>

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/algorithm&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/algorithm（页面不存在）">&lt;experimental/algorithm&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="sample.html" title="cpp/experimental/sample"> <span class="t-lines"><span>sample</span></span></a></div></div>
</td>
<td>  从序列随机选择 n 个元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="shuffle.html" title="cpp/experimental/shuffle"> <span class="t-lines"><span>shuffle</span></span></a></div></div>
</td>
<td>  随机地重排范围中的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id=".E7.89.B9.E6.80.A7.E6.B5.8B.E8.AF.95.E5.AE.8F">特性测试宏</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/type_traits&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/type traits（页面不存在）">&lt;experimental/type_traits&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_logical_traits</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201511</span></span></span> 的值，指示支持逻辑运算符类型特性 <br> <span class="t-mark">(宏常量)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_detect</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201505</span></span></span> 的值，指示支持检测手法 <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/propagate_const&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/propagate const（页面不存在）">&lt;experimental/propagate_const&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_propagate_const</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201505</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">propagate_const</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/functional&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/functional（页面不存在）">&lt;experimental/functional&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_not_fn</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201406</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">not_fn</span></span>  <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/memory&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/memory（页面不存在）">&lt;experimental/memory&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_observer_ptr</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201411</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">observer_ptr</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/array&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/array（页面不存在）">&lt;experimental/array&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_make_array</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201505</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">make_array</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/iterator&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/iterator（页面不存在）">&lt;experimental/iterator&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_ostream_joiner</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201411</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">ostream_joiner</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/vector&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/vector（页面不存在）">&lt;experimental/vector&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_erase_if</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201411</span></span></span> 的值，指示支持统一容器擦除 <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/numeric&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/numeric（页面不存在）">&lt;experimental/numeric&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_gcd_lcm</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201411</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">gcd</span></span> 和 <span class="t-c"><span class="mw-geshi cpp source-cpp">lcm</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/random&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/random（页面不存在）">&lt;experimental/random&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_randint</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201511</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">randint</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>



<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/source_location&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/source location（页面不存在）">&lt;experimental/source_location&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>__cpp_lib_experimental_source_location</span></span></div></div>
</td>
<td>  至少为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">201505</span></span></span> 的值，指示支持 <span class="t-c"><span class="mw-geshi cpp source-cpp">source_location</span></span> <br> <span class="t-mark">(宏常量)</span>
</td></tr>


</table>
<h2><span class="mw-headline" id=".E5.B9.B6.E5.85.A5_C.2B.2B17">并入 C++17</span></h2>
<p>库基础 v2 的下列组件已被采纳到 C++17 标准。
</p>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/type_traits&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/type traits（页面不存在）">&lt;experimental/type_traits&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="void_t.html" title="cpp/experimental/void t"> <span class="t-lines"><span>void_t</span></span></a></div></div>
</td>
<td>  <code>void</code> 的变长别名模板 <br> <span class="t-mark">(别名模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/type_traits&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/type traits（页面不存在）">&lt;experimental/type_traits&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/experimental/conjunction&amp;action=edit&amp;redlink=1" class="new" title="cpp/experimental/conjunction（页面不存在）"> <span class="t-lines"><span>conjunction</span></span></a></div></div>
</td>
<td>  变长逻辑与元函数 <br> <span class="t-mark">(类模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/experimental/disjunction&amp;action=edit&amp;redlink=1" class="new" title="cpp/experimental/disjunction（页面不存在）"> <span class="t-lines"><span>disjunction</span></span></a></div></div>
</td>
<td>  变长逻辑或元函数 <br> <span class="t-mark">(类模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/experimental/negation&amp;action=edit&amp;redlink=1" class="new" title="cpp/experimental/negation（页面不存在）"> <span class="t-lines"><span>negation</span></span></a></div></div>
</td>
<td>  逻辑非元函数 <br> <span class="t-mark">(类模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/functional&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/functional（页面不存在）">&lt;experimental/functional&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="not_fn.html" title="cpp/experimental/not fn"> <span class="t-lines"><span>not_fn</span></span></a></div></div>
</td>
<td>  创建函数对象，它返回其所保有的函数对象结果的逻辑补 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/numeric&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/numeric（页面不存在）">&lt;experimental/numeric&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/experimental/gcd&amp;action=edit&amp;redlink=1" class="new" title="cpp/experimental/gcd（页面不存在）"> <span class="t-lines"><span>gcd</span></span></a></div></div>
</td>
<td>  返回二个整数最大公约数的 <code>constexpr</code> 函数模板 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/experimental/lcm&amp;action=edit&amp;redlink=1" class="new" title="cpp/experimental/lcm（页面不存在）"> <span class="t-lines"><span>lcm</span></span></a></div></div>
</td>
<td>  返回二个整数最小公倍数的 <code>constexpr</code> 函数模板 <br> <span class="t-mark">(函数模板)</span> </td></tr>
</table>
<h2><span class="mw-headline" id=".E5.B9.B6.E5.85.A5_C.2B.2B20">并入 C++20</span></h2>
<p>库基础 v2 的下列组件已被采纳到 C++20 标准。
</p>
<h3><span class="mw-headline" id=".E7.BB.9F.E4.B8.80.E5.AE.B9.E5.99.A8.E6.93.A6.E9.99.A4"> 统一容器擦除 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/string&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/string（页面不存在）">&lt;experimental/string&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="basic_string/erase.html" title="cpp/experimental/basic string/erase"> <span class="t-lines"><span>erase<span class="t-dsc-small">(std::basic_string)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::basic_string</a></span> 擦除所有等于特定值的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="basic_string/erase_if.html" title="cpp/experimental/basic string/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::basic_string)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../string/basic_string.html" title="cpp/string/basic string">std::basic_string</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/deque&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/deque（页面不存在）">&lt;experimental/deque&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="deque/erase.html" title="cpp/experimental/deque/erase"> <span class="t-lines"><span>erase<span class="t-dsc-small">(std::deque)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/deque.html" title="cpp/container/deque">std::deque</a></span> 擦除所有等于特定值的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="deque/erase_if.html" title="cpp/experimental/deque/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::deque)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/deque.html" title="cpp/container/deque">std::deque</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/vector&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/vector（页面不存在）">&lt;experimental/vector&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="vector/erase.html" title="cpp/experimental/vector/erase"> <span class="t-lines"><span>erase<span class="t-dsc-small">(std::vector)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/vector.html" title="cpp/container/vector">std::vector</a></span> 擦除所有等于特定值的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="vector/erase_if.html" title="cpp/experimental/vector/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::vector)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/vector.html" title="cpp/container/vector">std::vector</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/forward_list&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/forward list（页面不存在）">&lt;experimental/forward_list&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="forward_list/erase.html" title="cpp/experimental/forward list/erase"> <span class="t-lines"><span>erase<span class="t-dsc-small">(std::forward_list)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/forward_list.html" title="cpp/container/forward list">std::forward_list</a></span> 擦除所有等于特定值的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="forward_list/erase_if.html" title="cpp/experimental/forward list/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::forward_list)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/forward_list.html" title="cpp/container/forward list">std::forward_list</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/list&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/list（页面不存在）">&lt;experimental/list&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="list/erase.html" title="cpp/experimental/list/erase"> <span class="t-lines"><span>erase<span class="t-dsc-small">(std::list)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/list.html" title="cpp/container/list">std::list</a></span> 擦除所有等于特定值的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="list/erase_if.html" title="cpp/experimental/list/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::list)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/list.html" title="cpp/container/list">std::list</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/map&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/map（页面不存在）">&lt;experimental/map&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="map/erase_if.html" title="cpp/experimental/map/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::map)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/map.html" title="cpp/container/map">std::map</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="multimap/erase_if.html" title="cpp/experimental/multimap/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::multimap)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/multimap.html" title="cpp/container/multimap">std::multimap</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/set&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/set（页面不存在）">&lt;experimental/set&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="set/erase_if.html" title="cpp/experimental/set/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::set)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/set.html" title="cpp/container/set">std::set</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="multiset/erase_if.html" title="cpp/experimental/multiset/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::multiset)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/multiset.html" title="cpp/container/multiset">std::multiset</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/unordered_map&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/unordered map（页面不存在）">&lt;experimental/unordered_map&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="unordered_map/erase_if.html" title="cpp/experimental/unordered map/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::unordered_map)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/unordered_map.html" title="cpp/container/unordered map">std::unordered_map</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="unordered_multimap/erase_if.html" title="cpp/experimental/unordered multimap/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::unordered_multimap)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/unordered_multimap.html" title="cpp/container/unordered multimap">std::unordered_multimap</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/unordered_set&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/unordered set（页面不存在）">&lt;experimental/unordered_set&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="unordered_set/erase_if.html" title="cpp/experimental/unordered set/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::unordered_set)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/unordered_set.html" title="cpp/container/unordered set">std::unordered_set</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="unordered_multiset/erase_if.html" title="cpp/experimental/unordered multiset/erase if"> <span class="t-lines"><span>erase_if<span class="t-dsc-small">(std::unordered_multiset)</span></span></span></a></div></div>
</td>
<td>  从 <span class="t-lc"><a href="../container/unordered_multiset.html" title="cpp/container/unordered multiset">std::unordered_multiset</a></span> 擦除所有满足谓词的元素 <br> <span class="t-mark">(函数模板)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id=".E6.BA.90.E7.A0.81.E4.BF.A1.E6.81.AF.E6.8D.95.E8.8E.B7"> 源码信息捕获 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/source_location&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/source location（页面不存在）">&lt;experimental/source_location&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="source_location.html" title="cpp/experimental/source location"> <span class="t-lines"><span>source_location</span></span></a></div></div>
</td>
<td>  表示关于源码的，如文件名、行号和函数名的信息 <br> <span class="t-mark">(类)</span>
</td></tr>

</table>
<h3><span class="mw-headline" id="std::array_.E8.BD.AC.E6.8D.A2"> <code>std::array</code> 转换 </span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-header">
<td colspan="2"> <div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/array&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/array（页面不存在）">&lt;experimental/array&gt;</a></code> </div>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="to_array.html" title="cpp/experimental/to array"> <span class="t-lines"><span>to_array</span></span></a></div></div>
</td>
<td>  从内建数组创建 <span class="t-lc"><a href="../container/array.html" title="cpp/container/array">std::array</a></span> 对象 <br> <span class="t-mark">(函数模板)</span> </td></tr>
</table>

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